In August, Siegen typically sees daytime highs of 20.4°C and overnight lows around 10.5°C. Compared to the annual average high of 11.5°C, August runs +8.9°C.
August in Siegen averages a daytime high of 20.4°C and an overnight low of 10.5°C.
August runs +8.9°C compared to Siegen's annual average high of 11.5°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 20.4°C and cooler evenings around 10.5°C.